WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 35,2008, Pages 5481-5483, doi:10.3748/wjg.14.5481
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 35,2008, Pages 5486-5488,
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 35,2008, Pages 5436-5441, doi:10.3748/wjg.14.5436
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 35,2008, Pages 5432-5435, doi:10.3748/wjg.14.5432
WORLD JOURNAL OF GASTROENTEROLOGY, Volume 14, Issue 35,2008, Pages 5471-5473, doi:10.3748/wjg.14.5471